Development and validation of a new self-report instrument for measuring sedentary behaviors and light-intensity physical activity in adults

• Published in: Journal of physical activity & health 2014-08, Vol.11 (6), p.1097-1104
• Main Authors: Barwais, Faisal Awad, Cuddihy, Thomas F, Washington, Tracy, Tomson, L Michaud, Brymer, Eric
• Format: Article
• Language: English
• Subjects: Accelerometers; Adult; Exercise; Female; Humans; Male; Motor Activity; Physical fitness; Psychometrics - statistics & numerical data; Reproducibility of Results; Sedentary behavior; Sedentary Lifestyle; Self Report; Surveys and Questionnaires
• ISSN: 1543-3080; 1543-5474
• DOI: 10.1123/jpah.2012-0118

Low levels of physical activity and high levels of sedentary behavior (SB) are major public health concerns. This study was designed to develop and validate the 7-day Sedentary (S) and Light Intensity Physical Activity (LIPA) Log (7-day SLIPA Log), a self-report measure of specific daily behaviors. To develop the log, 62 specific SB and LIPA behaviors were chosen from the Compendium of Physical Activities. Face-to-face interviews were conducted with 32 sedentary volunteers to identify domains and behaviors of SB and LIPA. To validate the log, a further 22 sedentary adults were recruited to wear the GT3x for 7 consecutive days and nights. Pearson correlations (r) between the 7-day SLIPA Log and GT3x were significant for sedentary (r = .86, P < .001), for LIPA (r = .80, P < .001). Lying and sitting postures were positively correlated with GT3x output (r = .60 and r = .64, P < .001, respectively). No significant correlation was found for standing posture (r = .14, P = .53).The kappa values between the 7-day SLIPA Log and GT3x variables ranged from 0.09 to 0.61, indicating poor to good agreement. The 7-day SLIPA Log is a valid self-report measure of SB and LIPA in specific behavioral domains.